A suitable title for the articles is ()
A. Dangerous Sports--What and Why
B. The Boredom of Modem Life
C. Bungee Jumping--Is It Really Dangerous
D. The Need for Excitement
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急性出血量多少时应立即输血
A. 200~400ml
B. 400~600ml
C. 600~800ml
D. 800~1000ml
E. >1000ml
Which living things can use sun energy directly()
Animals.
B. Plants.
C. Both animals and plants.
D. All living things.
将计算机应用于办公自动化属于计算机应用领域中的( )。
A. 科学计算
B. 信息处理
C. 过程控制
D. 计算机辅助
The writer of the article has a()attitude towards dangerous sports.
A. positive
B. negative
C. neutral
D. nervous